Diretiva de foto HTML

<!DOCTYPE html>
<html>
  
<head>
    <title>Adding image to dropdown list</title>
    <style>
        .dropbtn {
            background-color: #4CAF50;
            color: white;
            padding: 16px;
            font-size: 16px;
            border: none;
            cursor: pointer;
        }
  
        .dropdown {
            position: relative;
            display: inline-block;
        }
  
        .dropdown-content {
            display: none;
            position: absolute;
            background-color: #f9f9f9;
            min-width: 160px;
            box-shadow: 0px 8px 16px 
                0px rgba(0, 0, 0, 0.2);
            z-index: 1;
        }
  
        .dropdown-content a {
            color: black;
            padding: 12px 16px;
            text-decoration: none;
            display: block;
        }
  
        .dropdown-content a:hover {
            background-color: #f1f1f1
        }
  
        .dropdown:hover .dropdown-content {
            display: block;
        }
  
        .dropdown:hover .dropbtn {
            background-color: #3e8e41;
        }
    </style>
</head>
  
<body>
    <center>
        <h1 style="color: green">
            GeeksforGeeks
        </h1>
          
        <div class="dropdown">
            <button class="dropbtn">
                Country Flags
            </button>
              
            <div class="dropdown-content">
                <a href="#">
                    <img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20200630132503/iflag.jpg"
                    width="20" height="15"> India</a>
  
                <a href="#">
                    <img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20200630132504/uflag.jpg"
                    width="20" height="15"> USA</a>
                <a href="#">
                    <img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20200630132502/eflag.jpg"
                    width="20" height="15"> England</a>
                <a href="#">
                    <img src=
"https://media.geeksforgeeks.org/wp-content/uploads/20200630132500/bflag.jpg"
                    width="20" height="15"> Brazil</a>
            </div>
        </div>
    </center>
</body>
  
</html>
Julian